i2c: i2c-exynos5: fixed a spelling error

Corrected a spelling mistake in the i2c-exynos5 driver to improve code
readability. No functional changes were made.

Signed-off-by: Anindya Sundar Gayen <anindya.sg@samsung.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250228133745.35053-1-anindya.sg@samsung.com